Our search for acc-SySt among GALAH targets started with isolating the
cool giants from the rest. In this paper we focus on giants of the M
spectral types, those most abundant (\(\sim \) 70%) among the known SySt (see
the catalogs by [1]}, [2]},
[3]}, [4]}). SySt
containing other types of cool giants will be explored in follow-up papers.
